JPH0444110B2 - - Google Patents
Info
- Publication number
- JPH0444110B2 JPH0444110B2 JP62015795A JP1579587A JPH0444110B2 JP H0444110 B2 JPH0444110 B2 JP H0444110B2 JP 62015795 A JP62015795 A JP 62015795A JP 1579587 A JP1579587 A JP 1579587A JP H0444110 B2 JPH0444110 B2 JP H0444110B2
- Authority
- JP
- Japan
- Prior art keywords
- valve housing
- valve body
- opening
- pump
- tubular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
- F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0019—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers
- F04B7/0034—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers and having an orbital movement, e.g. elbow-pipe type members
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
- Y10S417/90—Slurry pumps, e.g. concrete
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Description
【発明の詳細な説明】
本発明はコンクリートなど用のポンプに関する
ものであり、このポンプは箱と弁ハウジングとの
間を連絡する一対のポンプシリンダと、前記弁ハ
ウジング上に置かれた供給ホツパと、前記弁ハウ
ジング内で前記ポンプシリンダの前記対の間の中
心面内に置かれた旋回軸線のまわりで旋回するよ
う装架され、且つポンプシンダの軸線の上方に置
かれた管状旋回弁体とを有し、前記弁ハウジング
は可動の底部フラツプを有し、且つ前記弁ハウジ
ングの底部開口部は弁体の左右揺動範囲と同等若
しくはそれ以上の開口面積を有し、底部フラツプ
はその開口部を閉鎖しうる形状としたものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pump for concrete, etc., and this pump includes a pair of pump cylinders communicating between a box and a valve housing, and a supply hopper placed on the valve housing. a tubular pivot valve body mounted for pivoting within the valve housing about a pivot axis located in a center plane between the pair of pump cylinders and located above the axis of the pump cinder; The valve housing has a movable bottom flap, and the bottom opening of the valve housing has an opening area equal to or larger than the left-right swing range of the valve body, and the bottom flap has a movable bottom flap. It has a shape that can be closed.
この技術のポンプのいくつかの型は知られてい
る。例えば、特開昭53−14404号公報には弁ハウ
ジング下部に小さなドレン用の孔及びその蓋が取
り付けられ、管状旋回弁体の揺動により、この旋
回弁体が前記蓋及び弁ハウジング上を移動する構
成が開示されている。しかしながら、このような
構成では、前記蓋と弁ハウジングの境界に摺接摩
耗による段ができ、従つて、旋回弁体の揺動時
に、その段において石をかみ込み、蓋、弁ハウジ
ングの摩耗を早め、さらには旋回弁体の揺動を停
止させる事態が起きる。 Several types of pumps of this technology are known. For example, in Japanese Patent Application Laid-Open No. 53-14404, a small drain hole and its cover are attached to the lower part of the valve housing, and the swinging of the tubular swing valve body causes the swing valve body to move over the cover and the valve housing. A configuration is disclosed. However, in such a configuration, a step is formed at the boundary between the lid and the valve housing due to sliding contact wear, and therefore, when the swing valve body swings, stones are caught in the step, causing wear on the lid and the valve housing. A situation may occur in which the swinging of the swing valve body is prematurely stopped.
本発明の目的は弁ハウジングと旋回弁体との摩
耗を少なくした新規なコンクリートポンプを提供
することである。 SUMMARY OF THE INVENTION An object of the present invention is to provide a new concrete pump with reduced wear between the valve housing and the swing valve body.
従つて、本発明は、コンクリートなど用のポン
プにおいて、箱と弁ハウジングとの間を連絡する
一対のポンプシリンダと、前記弁ハウジング上に
置かれた供給ホツパと、前記弁ハウジング内で前
記一対のシリンダの間の中心面内に置かれた旋回
軸線のまわりで旋回するよう装架され且つ前記ポ
ンプシリンダの軸線の上方に置かれた管状旋回弁
体と、この管状旋回弁体の供給端部を支持し且つ
前記弁ハウジングに固定された摩耗板とを有し、
前記弁ハウジングの底部には開口部が形成され、
この開口部の一側縁を中心に開閉自在に底部フラ
ツプが取り付けられ、この底部フラツプの前記管
状旋回弁体との対向側は、前記管状旋回弁体下部
の揺動面とほぼ同一の円弧状に形成されて前記管
状旋回弁体下部に近接して配され、前記弁ハウジ
ング底部の開口部は、前記管状旋回弁体の揺動範
囲が設定する面積と同等若しくはそれ以上の開口
面積を有し、前記底部フラツプは閉鎖時に前記開
口部を密封する形状に形成されている、コンクリ
ートポンプを要旨とするものである。 Accordingly, the present invention provides a pump for concrete, etc., which includes a pair of pump cylinders that communicate between a box and a valve housing, a supply hopper placed on the valve housing, and a supply hopper that communicates between a box and a valve housing. a tubular pivot valve body mounted for pivoting about a pivot axis disposed in a central plane between the cylinders and positioned above the axis of the pump cylinder; a supply end of the tubular pivot valve body; a wear plate supporting and secured to the valve housing;
an opening is formed in the bottom of the valve housing;
A bottom flap is attached to one side edge of this opening so that it can be opened and closed freely, and the side of the bottom flap opposite to the tubular swing valve body has an arc shape that is approximately the same as the swinging surface of the lower part of the tubular swing valve body. and arranged close to the lower part of the tubular swing valve body, and the opening at the bottom of the valve housing has an opening area equal to or larger than the area set by the swing range of the tubular swing valve body. , the bottom flap is shaped to seal the opening when closed.
次に本発明の実施例を添付図面について説明す
る。 Next, embodiments of the present invention will be described with reference to the accompanying drawings.
図においてコンクリートポンプ１０は一対の管
状ポンプシリンダ１２を取巻く角柱型金属板製の
結合箱１４を有し、結合箱１４の一端は箱１６に
溶接され、他端は弁ハウジング１８に溶接され
る。従つて、３個の部材１４，１６，１８で構成
される装置は一体の分離できない剛い構造のユニ
ツトを形成する。シリンダ１２の対の各々の中の
ピストン２０はピストン棒２２に結合され、ピス
トン棒２２は箱１６を通して一対の液圧シリンダ
２４の１つの中に延び、且つその中に第２ピスト
ン（図示せず）が設けられる。供給ホツパ２６は
弁ハウジング１８上に取り付けられる。結合箱１
４は自己支持であり、支持体又はブラケツト２８
（第１図参照）、液圧ポンプ−モータ装置３０、制
御装置３２のような必要な装置は結合箱１４に取
り付けられる。 In the figure, a concrete pump 10 has a coupling box 14 made of a prismatic metal plate surrounding a pair of tubular pump cylinders 12, one end of the coupling box 14 being welded to a box 16, and the other end welded to a valve housing 18. The device comprised of the three members 14, 16, 18 thus forms an integral, inseparable, rigid structural unit. A piston 20 in each pair of cylinders 12 is coupled to a piston rod 22 that extends through box 16 into one of the pair of hydraulic cylinders 24 and has a second piston (not shown) therein. ) is provided. A feed hopper 26 is mounted on the valve housing 18. Combine box 1
4 is self-supporting and has a support or bracket 28
The necessary equipment, such as (see FIG. 1), a hydraulic pump-motor system 30, and a control system 32 are mounted in the combination box 14.
管状の弁体３４は弁ハウジング１８内に置か
れ、且つ軸線３６のまわりで旋回するよう装架さ
れ、この軸線３６はシリンダ１２の上方で、その
対称面内においてこれと平行に置かれる。弁体３
４の排出端はソケツトを形成し、その軸線は旋回
軸線３６と同一である。ソケツトは弁ハウジング
１８の前壁３８のベアリング内に装架される。弁
体３４の同心軸４２（第２図参照）は弁ハウジン
グ１８の後壁４０内に装架され、この後壁４０を
越えて突出し、液圧シリンダ４３は軸４２の旋回
腕と作動結合される。弁ハウジング１８の側壁４
４，４６（第３図参照）と後壁４０とで一体に形
成された前壁３８は、弁体３４の排出ソケツト用
のベアリングの上部半体を支持する。このベアリ
ングの下部半体は摺動体４８の中に形成され、摺
動体４８は前壁３８にねじにより取り付けられ、
下方に取り外すことができる。前記弁ハウジング
１８の底部開口部は弁体３４の左右揺動範囲と同
等若しくはそれ以上の開口面積を有している。前
記弁ハウジング１８には、その開口部を閉鎖しう
るよう動作すると共に、弁体３４の下部と近接し
て底部フラツプ５０を設けてある。前記底部フラ
ツプ５０は後壁４０の軸線５２のまわりで回動可
能に装架されると共に、液圧シリンダ５４により
閉じ位置に揺動することができ、且つ摺動体４８
又は前壁３８に固定することができる。摩耗リン
グ５６は弁体３４の供給端内に挿入される。更
に、摩耗リング５６はねじ６０で後壁４０に取り
付けられた２部分式摩耗板５８と接触し、このね
じは後壁４０の外側から挿入される。底部フラツ
プ５０の回動軸線５２は、底部フラツプ５０の開
き位置の時に、弁体３４を作動位置に維持しなが
ら摩耗リング５６と摩耗板５８の両部分とを互い
に下方に分解することができるように後方に充分
片寄つている。この種の従来のコンクリートポン
プでは、弁体３４の下部と底部フラツプ５０との
間に〓間があるため、〓間上のコンクリートが撹
拌されずに固結し無駄なコンクリートが発生した
り、底部フラツプ等の洗浄に手間がかかるが、本
発明では底部フラツプ５０上のコンクリートは弁
体３４の揺動により常に流動化されてポンプ１０
側に円滑且つ確実に吸引されるため底部フラツプ
５０や弁ハウジング１８に固結することがない。 A tubular valve body 34 is placed within the valve housing 18 and is mounted for pivoting about an axis 36 which lies above and parallel to the cylinder 12 in its plane of symmetry. Valve body 3
The discharge end of 4 forms a socket, the axis of which is the same as the pivot axis 36. The socket is mounted in a bearing in the front wall 38 of the valve housing 18. A concentric shaft 42 (see FIG. 2) of the valve body 34 is mounted within and projects beyond the rear wall 40 of the valve housing 18, and a hydraulic cylinder 43 is operatively connected to a pivot arm of the shaft 42. Ru. Side wall 4 of valve housing 18
A front wall 38, integrally formed with the rear wall 40 and 4, 46 (see FIG. 3), supports the upper half of the bearing for the discharge socket of the valve body 34. The lower half of this bearing is formed in a slide 48 which is attached to the front wall 38 by screws;
Can be removed downwards. The bottom opening of the valve housing 18 has an opening area that is equal to or larger than the horizontal swing range of the valve body 34. The valve housing 18 is provided with a bottom flap 50 operable to close the opening thereof and proximate the lower portion of the valve body 34. The bottom flap 50 is rotatably mounted about an axis 52 of the rear wall 40 and can be swung into a closed position by means of a hydraulic cylinder 54 and a slider 48
Or it can be fixed to the front wall 38. A wear ring 56 is inserted into the feed end of the valve body 34. Furthermore, the wear ring 56 contacts a two-part wear plate 58 that is attached to the rear wall 40 by screws 60, which screws are inserted from the outside of the rear wall 40. The pivot axis 52 of the bottom flap 50 is such that, when the bottom flap 50 is in the open position, both parts of the wear ring 56 and the wear plate 58 can be disassembled downwardly relative to each other while maintaining the valve body 34 in the operative position. It is far enough toward the rear. In this type of conventional concrete pump, since there is a gap between the lower part of the valve body 34 and the bottom flap 50, the concrete on the gap is not stirred and solidifies, resulting in wasted concrete and the bottom flap 50. Although it takes time and effort to clean the flap, etc., in the present invention, the concrete on the bottom flap 50 is constantly fluidized by the swinging of the valve body 34, and the pump 10
Since it is sucked smoothly and reliably to the side, it does not stick to the bottom flap 50 or the valve housing 18.
更に従来のコンクリートポンプではハウジング
１８と底部フラツプ５０との接合部にコンクリー
ト中の石が引つかかることが多く、接合部を弁体
３４が通過すると弁体３４が摩耗し、弁体３４で
石が引きずられて弁ハウジング１８も摩耗し、場
合によつては石を噛み込んで停止することもある
が、本発明では弁ハウジング１８の底部開口面積
を大きくし、底部フラツプ５０が開口部を閉鎖し
うる形状とした。従つて、弁ハウジング１８と底
部フラツプ５０との接合部を弁体３４が通過しな
いので、石が底部フラツプ５０上で引つかかるこ
とがなく、スムーズに流動し、弁体、弁ハウジン
グ、底部フラツプの摩耗が少なくなる。なお、６
２はポンプシリンダ１２を箱１６の前壁６４に向
けて押圧する締付リング、６８は前壁６４に設け
られた一対の孔で、この中にシリンダ端部６６が
夫々取り付けられる。７０はシリンダ１２と前記
孔６８とをその軸線方向に組立てた時、整合させ
る案内斜路、７２は環状肩部、７４はねじ、７６
はフランジを示す。 Furthermore, in conventional concrete pumps, stones in the concrete often get caught in the joint between the housing 18 and the bottom flap 50, and when the valve body 34 passes through the joint, the valve body 34 wears out, and stones in the concrete often get caught in the joint between the housing 18 and the bottom flap 50. The valve housing 18 may also wear out due to being dragged, and in some cases it may get stuck due to stones, but in the present invention, the bottom opening area of the valve housing 18 is increased, and the bottom flap 50 closes the opening. It has a flexible shape. Therefore, since the valve body 34 does not pass through the joint between the valve housing 18 and the bottom flap 50, the stones do not get caught on the bottom flap 50 and flow smoothly, allowing the stones to flow smoothly between the valve body, the valve housing, and the bottom flap. less wear. In addition, 6
2 is a tightening ring that presses the pump cylinder 12 toward the front wall 64 of the box 16, and 68 is a pair of holes provided in the front wall 64, into which the cylinder ends 66 are respectively installed. 70 is a guide slope for aligning the cylinder 12 and the hole 68 in the axial direction when assembled; 72 is an annular shoulder; 74 is a screw; 76
indicates a flange.
以上述べた通り本発明によれば、弁ハウジング
底部の開口面積が広いため、弁ハウジングを簡単
に洗浄することができると共に、管状旋回弁体の
揺動時に、弁ハウジングと底部フラツプの〓間に
石などが噛み込むことがなく、更に管状旋回弁体
との間隔が弁ハウジングと底部フラツプとでほぼ
等しいため、弁ハウジングや底部フラツプの摩耗
が大幅に低減することができる。 As described above, according to the present invention, since the opening area at the bottom of the valve housing is wide, the valve housing can be easily cleaned, and when the tubular swing valve body swings, there is a gap between the valve housing and the bottom flap. Since stones and the like do not get caught, and the distance between the valve housing and the bottom flap is approximately equal to the tubular swing valve body, wear of the valve housing and the bottom flap can be significantly reduced.
第１図は移動型コンクリートポンプの側面図、
第２図はポンプ装置の基本部材の分解図、第３図
はポンプ装置の平面図、第４図は一部破断したポ
ンプ装置の側面図、第５図はポンプ装置の前面
図、第６図は構造装置内の１つのポンプシリンダ
のベアリングの詳細な断面図である。
１０……ポンプ、１２……シリンダ、１４……
結合箱、１６……箱、１８……弁ハウジング、２
０……ピストン、２２……ピストン棒、２４……
液圧シリンダ、２６……ホツパ、２８……ブラケ
ツト、３０……ポンプ−モータ装置、３２……制
御装置、３４，３５……弁体、３６……軸線、３
８……前壁、４０……後壁、４２……軸、４３…
…液圧シリンダ、４４，４６……側壁、４８……
摺動体、５０……フラツプ、５２……軸線、５４
……液圧シリンダ、５６……摩耗リング、５８…
…摩耗板、６０……ねじ、６２……締付リング、
６４……前壁、６６……端部、６８……孔、７０
……斜路、７２……肩部、７４……ねじ、７６…
…フランジ。
Figure 1 is a side view of the mobile concrete pump.
Fig. 2 is an exploded view of the basic components of the pump device, Fig. 3 is a plan view of the pump device, Fig. 4 is a partially broken side view of the pump device, Fig. 5 is a front view of the pump device, and Fig. 6 1 is a detailed sectional view of a bearing of one pump cylinder in a structural device; FIG. 10...Pump, 12...Cylinder, 14...
Combined box, 16... Box, 18... Valve housing, 2
0... Piston, 22... Piston rod, 24...
Hydraulic cylinder, 26... Hopper, 28... Bracket, 30... Pump-motor device, 32... Control device, 34, 35... Valve body, 36... Axis line, 3
8...front wall, 40...rear wall, 42...shaft, 43...
...Hydraulic cylinder, 44, 46...Side wall, 48...
Sliding body, 50... Flap, 52... Axis line, 54
... Hydraulic cylinder, 56 ... Wear ring, 58 ...
...wear plate, 60...screw, 62...tightening ring,
64... Front wall, 66... End, 68... Hole, 70
...Slope, 72...Shoulder, 74...Screw, 76...
...Flange.
Claims (1)
弁ハウジングとの間を連絡する一対のポンプシリ
ンダと、前記弁ハウジング上に置かれた供給ホツ
パと、前記弁ハウジング内で前記一対のシリンダ
の間を中心面内に置かれた旋回軸線のまわりで旋
回するよう装架され且つ前記ポンプシリンダの軸
線の上方に置かれた管状旋回弁体と、この管状旋
回弁体の供給端部を支持し且つ前記弁ハウジング
に固定された摩耗板とを有し、前記弁ハウジング
の底部には開口部が形成され、この開口部の一側
縁を中心に開閉自在に底部フラツプが取り付けら
れ、この底部フラツプの前記管状旋回弁体との対
向側は、前記管状旋回弁体下部の揺動面とほぼ同
一の円弧状に形成されて前記管状旋回弁体下部に
近接して配され、前記弁ハウジング底部の開口部
は、前記管状旋回弁体の揺動範囲が設定する面積
と同等若しくはそれ以上の開口面積を有し、前記
底部フラツプは閉鎖時に前記開口部を密封する形
状に形成されていることを特徴とするコンクリー
トポンプ。1. In a pump for concrete, etc., a pair of pump cylinders communicating between a box and a valve housing, a supply hopper placed on the valve housing, and a center plane between the pair of cylinders within the valve housing. a tubular pivot valve body mounted for pivoting about a pivot axis disposed within and positioned above the axis of the pump cylinder; supporting a supply end of the tubular pivot valve body and supporting the valve housing; a wear plate fixed to the valve housing, an opening is formed in the bottom of the valve housing, a bottom flap is attached to the opening so that it can be opened and closed about one side edge of the opening, and the tubular pivot of the bottom flap The side facing the valve body is formed in an arc shape that is substantially the same as the swinging surface of the lower part of the tubular swing valve body and is disposed close to the lower part of the tubular swing valve body, and the opening in the bottom of the valve housing is A concrete pump characterized in that the opening area is equal to or larger than the area set by the swing range of the tubular swing valve body, and the bottom flap is formed in a shape that seals the opening when closed. .
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3304985.8-15 | 1983-02-12 | ||
| DE19833304985 DE3304985A1 (en) | 1983-02-12 | 1983-02-12 | PUMP UNIT FOR HEAVY-FLOWING SUBSTANCES, ABOUT CONCRETE |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4070316A Division JP2553983B2 (en) | 1983-02-12 | 1992-02-20 | Concrete pump |
| JP4070315A Division JPH0794818B2 (en) | 1983-02-12 | 1992-02-20 | Concrete pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62189382A JPS62189382A (en) | 1987-08-19 |
| JPH0444110B2 true JPH0444110B2 (en) | 1992-07-20 |
Family
ID=6190777
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59018152A Granted JPS59147884A (en) | 1983-02-12 | 1984-02-03 | Concrete pump |
| JP62015795A Granted JPS62189382A (en) | 1983-02-12 | 1987-01-26 | Concrete pump |
| JP62015794A Granted JPS62189381A (en) | 1983-02-12 | 1987-01-26 | Concrete pump |
| JP4070315A Expired - Lifetime JPH0794818B2 (en) | 1983-02-12 | 1992-02-20 | Concrete pump |
| JP4070316A Expired - Lifetime JP2553983B2 (en) | 1983-02-12 | 1992-02-20 | Concrete pump |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59018152A Granted JPS59147884A (en) | 1983-02-12 | 1984-02-03 | Concrete pump |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62015794A Granted JPS62189381A (en) | 1983-02-12 | 1987-01-26 | Concrete pump |
| JP4070315A Expired - Lifetime JPH0794818B2 (en) | 1983-02-12 | 1992-02-20 | Concrete pump |
| JP4070316A Expired - Lifetime JP2553983B2 (en) | 1983-02-12 | 1992-02-20 | Concrete pump |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4563135A (en) |
| EP (1) | EP0118749B1 (en) |
| JP (5) | JPS59147884A (en) |
| KR (1) | KR860001221B1 (en) |
| DE (2) | DE3304985A1 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3304985A1 (en) * | 1983-02-12 | 1984-08-23 | Rudolf Ing. Riker (grad.), 8940 Memmingen | PUMP UNIT FOR HEAVY-FLOWING SUBSTANCES, ABOUT CONCRETE |
| DE3813758A1 (en) * | 1988-04-23 | 1989-11-02 | Putzmeister Maschf | MATERIAL TASK CONTAINER FOR HIGH PERFORMANCE PUMPS |
| JPH0270983A (en) * | 1988-09-07 | 1990-03-09 | Kyokuto Kaihatsu Kogyo Co Ltd | Valve case for piston type concrete pump |
| DE4209471A1 (en) * | 1992-03-24 | 1993-09-30 | Schwing Gmbh F | Thick matter pump for feed cylinders, especially two-cylinder concrete pumps |
| JP3145488B2 (en) * | 1992-07-10 | 2001-03-12 | 三菱重工業株式会社 | Concrete pump S type gate valve sliding surface close contact device |
| DE4327177A1 (en) * | 1993-08-13 | 1995-02-16 | Putzmeister Maschf | Arrangement for opening and closing a cap |
| NL1004549C2 (en) * | 1996-11-18 | 1998-05-19 | Hama Nederland B V | Mobile pumping device and coupling. |
| DE19727103A1 (en) * | 1997-06-26 | 1999-01-07 | Putzmeister Ag | Piston pump for thick matter |
| US6305916B1 (en) * | 1999-01-13 | 2001-10-23 | Gerald Reinert | Concrete pump with pivotable hopper assembly |
| DE10343802B4 (en) * | 2003-09-22 | 2007-12-06 | Schwing Gmbh | Piston slurry pump with continuous flow |
| DE102004009363B4 (en) * | 2004-02-26 | 2008-01-24 | Schwing Gmbh | Piston slurry pump |
| US7462020B2 (en) * | 2004-05-28 | 2008-12-09 | Reinert Manufacturing Inc. | Concrete pump with pivotable hopper asssembly |
| CN102297125B (en) * | 2011-08-08 | 2015-09-16 | 湘潭大唐焊接材料有限公司 | Wearing-cutting ring and manufacture method thereof |
| CN102305210B (en) * | 2011-08-08 | 2015-09-16 | 湘潭大唐焊接材料有限公司 | Anti-wear wear plate and manufacture method thereof |
| CN103321871B (en) * | 2013-06-21 | 2016-04-06 | 中联重科股份有限公司 | Pumping mechanism and pumping equipment including the pumping mechanism |
| US10001114B1 (en) | 2017-03-28 | 2018-06-19 | Jessop Initiatives LLC | Continuous flow pumping system |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US333132A (en) | 1885-12-29 | Saeah j | ||
| DE1166625B (en) * | 1959-03-14 | 1964-03-26 | Johanne Kaestner Geb Koerner | Pump, in particular concrete pump, with a large overall length and with a hydraulically operated drive piston |
| US3037460A (en) * | 1960-04-26 | 1962-06-05 | Armco Steel Corp | Pumps |
| US3137216A (en) * | 1962-07-19 | 1964-06-16 | Armco Steel Corp | Cylinder head arrangements |
| US3266435A (en) * | 1963-12-09 | 1966-08-16 | Smith Eugene | Pump for semi-fluid material |
| DE1453705A1 (en) * | 1963-12-19 | 1969-09-18 | Wennberg Olav Carl Gustav | Piston pump for concrete or other masses of similar consistency |
| US3639086A (en) * | 1968-04-03 | 1972-02-01 | Tubular Structures Corp | Concrete pump |
| US3532442A (en) * | 1969-01-27 | 1970-10-06 | Morgen Mfg Co | Mobile concrete pump |
| DE2162406C3 (en) * | 1971-12-16 | 1979-03-01 | Karl Dipl.-Ing. 7024 Bernhausen Schlecht | Slider device for a pump with two cylinders working in push-pull for pumping concrete or the like |
| US3771801A (en) * | 1972-06-05 | 1973-11-13 | Greene Tweed & Co Inc | Sealing device |
| US3811802A (en) * | 1972-12-06 | 1974-05-21 | Eng Concrete Placer Inc | Slurry pump cleanout mechanism |
| DE2415276C2 (en) * | 1974-03-29 | 1976-11-11 | Friedrich Schwing | Pump for pumping thick matter, especially concrete |
| DE2632816C2 (en) * | 1976-07-21 | 1982-07-29 | Friedrich Wilh. Schwing Gmbh, 4690 Herne | Sealing device for a double cylinder pump, especially for pumping concrete |
| DE2757035C3 (en) * | 1977-12-21 | 1980-09-11 | Wibau Industrie Und Verwaltung Gmbh, 6466 Gruendau | Concrete piston pump |
| DE2814845C3 (en) * | 1978-04-06 | 1981-06-11 | Stetter Gmbh, 8940 Memmingen | Concrete flow control valve of a concrete pump with an S-shaped swivel pipe |
| JPS591354B2 (en) * | 1978-12-11 | 1984-01-11 | 極東開発工業株式会社 | concrete pump |
| DE7906553U1 (en) * | 1979-03-09 | 1982-01-21 | Stetter Gmbh, 8940 Memmingen | CONTROL DEVICE OF A MULTI-CYLINDER PUMP FOR LARGE DIMENSIONS |
| JPS5615463U (en) * | 1979-07-13 | 1981-02-10 | ||
| DE2933128C2 (en) * | 1979-08-16 | 1985-09-26 | Friedrich Wilh. Schwing Gmbh, 4690 Herne | Thick matter pump, especially for pumping concrete |
| DE3009746A1 (en) * | 1980-03-14 | 1981-10-01 | Stetter Gmbh, 8940 Memmingen | Two-cylinder reciprocating concrete pump control slide - has bearing for curved discharge pipe cast integrally with pipe in split sections |
| JPS5773458U (en) * | 1980-10-22 | 1982-05-06 | ||
| DE3148484A1 (en) * | 1981-12-08 | 1983-06-16 | Stetter Gmbh, 8940 Memmingen | Wear protection of a concrete pump |
| DE3304985A1 (en) * | 1983-02-12 | 1984-08-23 | Rudolf Ing. Riker (grad.), 8940 Memmingen | PUMP UNIT FOR HEAVY-FLOWING SUBSTANCES, ABOUT CONCRETE |
| US4576386A (en) * | 1985-01-16 | 1986-03-18 | W. S. Shamban & Company | Anti-extrusion back-up ring assembly |
-
1983
- 1983-02-12 DE DE19833304985 patent/DE3304985A1/en not_active Ceased
-
1984
- 1984-02-03 JP JP59018152A patent/JPS59147884A/en active Granted
- 1984-02-06 US US06/577,346 patent/US4563135A/en not_active Expired - Lifetime
- 1984-02-06 KR KR1019840000539A patent/KR860001221B1/en not_active Expired
- 1984-02-07 EP EP84101212A patent/EP0118749B1/en not_active Expired
- 1984-02-07 DE DE8484101212T patent/DE3462353D1/en not_active Expired
-
1987
- 1987-01-26 JP JP62015795A patent/JPS62189382A/en active Granted
- 1987-01-26 JP JP62015794A patent/JPS62189381A/en active Granted
-
1992
- 1992-02-20 JP JP4070315A patent/JPH0794818B2/en not_active Expired - Lifetime
- 1992-02-20 JP JP4070316A patent/JP2553983B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0118749A1 (en) | 1984-09-19 |
| JPH0794818B2 (en) | 1995-10-11 |
| JP2553983B2 (en) | 1996-11-13 |
| JPS62189382A (en) | 1987-08-19 |
| JPH0134306B2 (en) | 1989-07-18 |
| JPH05202843A (en) | 1993-08-10 |
| DE3304985A1 (en) | 1984-08-23 |
| KR860001221B1 (en) | 1986-08-27 |
| JPS62189381A (en) | 1987-08-19 |
| DE3462353D1 (en) | 1987-03-12 |
| KR840007614A (en) | 1984-12-08 |
| US4563135A (en) | 1986-01-07 |
| JPS59147884A (en) | 1984-08-24 |
| EP0118749B1 (en) | 1987-02-04 |
| JPH0134307B2 (en) | 1989-07-18 |
| JPH05202844A (en) | 1993-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |